linux-kernel - [PATCH RFC v2 05/20] drm: Introduce DRM_CAP_POST_BLEND_COLOR

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250917-mtk-post-blend-color-pipeline-v2-5-ac4471b44758@collabora.com>
Date: Wed, 17 Sep 2025 20:43:14 -0400
From: Nícolas F. R. A. Prado <nfraprado@...labora.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Chun-Kuang Hu <chunkuang.hu@...nel.org>, 
 Philipp Zabel <p.zabel@...gutronix.de>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Haneen Mohammed <hamohammed.sa@...il.com>, 
 Melissa Wen <melissa.srw@...il.com>
Cc: Alex Hung <alex.hung@....com>, wayland-devel@...ts.freedesktop.org, 
 harry.wentland@....com, leo.liu@....com, ville.syrjala@...ux.intel.com, 
 pekka.paalanen@...labora.com, contact@...rsion.fr, mwen@...lia.com, 
 jadahl@...hat.com, sebastian.wick@...hat.com, shashank.sharma@....com, 
 agoins@...dia.com, joshua@...ggi.es, mdaenzer@...hat.com, aleixpol@....org, 
 xaver.hugl@...il.com, victoria@...tem76.com, uma.shankar@...el.com, 
 quic_naseer@...cinc.com, quic_cbraga@...cinc.com, quic_abhinavk@...cinc.com, 
 marcan@...can.st, Liviu.Dudau@....com, sashamcintosh@...gle.com, 
 chaitanya.kumar.borah@...el.com, louis.chauvet@...tlin.com, 
 mcanal@...lia.com, kernel@...labora.com, daniels@...labora.com, 
 leandro.ribeiro@...labora.com, dri-devel@...ts.freedesktop.org, 
 linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org, 
 linux-arm-kernel@...ts.infradead.org, 
 Nícolas F. R. A. Prado <nfraprado@...labora.com>, 
 Simona Vetter <simona.vetter@...ll.ch>
Subject: [PATCH RFC v2 05/20] drm: Introduce
 DRM_CAP_POST_BLEND_COLOR_PIPELINE

Add a new cap that drivers can set to signal they support post-blend
color pipelines.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
---
 drivers/gpu/drm/drm_ioctl.c | 3 +++
 include/drm/drm_drv.h       | 6 ++++++
 include/uapi/drm/drm.h      | 6 ++++++
 3 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index ff193155129e7e863888d8958458978566b144f8..01592d10e3465ddceddef94bc417f98d3ec12087 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -304,6 +304,9 @@ static int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_
 		req->value = drm_core_check_feature(dev, DRIVER_ATOMIC) &&
 			     dev->mode_config.async_page_flip;
 		break;
+	case DRM_CAP_POST_BLEND_COLOR_PIPELINE:
+		req->value = drm_core_check_feature(dev, DRIVER_POST_BLEND_COLOR_PIPELINE);
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 42fc085f986dee9261f8b08c4fc7d93b8d6d9769..6b0f4904e69766232283d430c2540d30afef850f 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -122,6 +122,12 @@ enum drm_driver_feature {
 	 * the cursor planes to work correctly).
 	 */
 	DRIVER_CURSOR_HOTSPOT           = BIT(9),
+	/**
+	 * @DRIVER_POST_BLEND_COLOR_PIPELINE:
+	 *
+	 * Driver supports post-blend color pipeline.
+	 */
+	DRIVER_POST_BLEND_COLOR_PIPELINE		= BIT(10),

 	/* IMPORTANT: Below are all the legacy flags, add new ones above. */

diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
index 27cc159c1d275c7a7fe057840ef792f30a582bb7..c6c53e57958e951204154ce41a69696a6876f0e8 100644
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -812,6 +812,12 @@ struct drm_gem_change_handle {
  * commits.
  */
 #define DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP	0x15
+/**
+ * DRM_CAP_POST_BLEND_COLOR_PIPELINE
+ *
+ * If set to 1, the driver supports post-blend color pipelines.
+ */
+#define DRM_CAP_POST_BLEND_COLOR_PIPELINE	0x16

 /* DRM_IOCTL_GET_CAP ioctl argument type */
 struct drm_get_cap {

-- 
2.50.1